Soft sealing gate valve with high stability

Abstract

The utility model discloses a soft sealing gate valve with high stability, which comprises a valve body and a valve shaft, the valve shaft of the valve body is provided with a first groove, a rod body is incorporated into the first groove, a plurality of protrusions are fixedly connected to the inner wall of the first groove, the rod body is provided with a plurality of second grooves, the number of the plurality of second grooves is consistent with that of the plurality of protrusions and they are compatible with each other. When the valve shaft needs to be rotated, the rod body needs to be moved upward, the second groove of the rod body is contacted with the protrusion of the valve shaft, and then the valve shaft can be rotated. The soft sealing gate valve with high stability can prevent accidental touch, ensure quick operation of the valve shaft, and realize quick rotation of the valve shaft through synchronous completion of unlocking and power transmission by only using one hand to pull the rod body, thereby improving operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of gate valves, and in particular to a soft-seal gate valve with high stability. Background Technology

[0002] A soft-seal gate valve is a gate valve in which at least one side of the gate sealing surface and the valve seat sealing surface is made of non-metallic materials (such as rubber, plastic, etc.). It offers excellent sealing performance, effectively cutting off media flow, and requires low opening and closing torque for easy operation. Suitable for media such as water, steam, and oil, it is widely used in pipeline systems for water supply and drainage, HVAC, and chemical industries.

[0003] The existing announcement number is CN222209008U, which describes a non-operational soft-seal gate valve with a concealed stem. By sliding the valve stem upward, the valve stem slides out of the limiting block. Then, the valve stem is screwed into the fixing plate to fix the valve stem. Finally, the limiting rod is screwed into the connecting column and the limiting hole to fix the valve plate, thereby preventing misoperation or malicious operation.

[0004] Although existing soft-seal gate valves can ensure stability by using anti-accidental operation design, the multi-step anti-accidental operation design is more suitable for scenarios with low operation and high safety requirements, such as gas pipelines. In scenarios that require frequent switching, such as feed valves of chemical reactors, the operation efficiency is low. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly stable soft-seal gate valve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A highly stable soft-seal gate valve includes a valve body and a valve shaft. The valve shaft of the valve body has a first groove, and a rod is incorporated into the first groove. Multiple protrusions are fixedly connected to the inner wall of the first groove. The rod has multiple second grooves, and the number of the multiple second grooves and the multiple protrusions are the same and compatible.

[0008] Preferably, a sleeve is fixedly connected to one end of the rod, a handwheel is fixedly connected to the sleeve, and a handle is fixedly connected to one end and the other end of the sleeve.

[0009] Preferably, each of the plurality of protrusions is fixedly connected to a rubber pad.

[0010] Preferably, the plurality of protrusions and the second groove are all arranged in a cross shape.

[0011] Preferably, the length of each of the plurality of protrusions is less than the depth of the first groove, and the length of each of the plurality of second grooves is less than the height of the rod.

[0012] Preferably, both the outer and inner rings of the handwheel are fixedly connected with rubber rings.

[0013] Preferably, both handles are fixedly connected with rubber sleeves.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the cooperation between the valve shaft, the first groove, the protrusion, the rod body, and the second groove, when the valve shaft needs to be rotated, the rod body needs to be moved upwards so that the second groove of the rod body contacts the protrusion of the valve shaft before rotation can be performed. This can prevent accidental contact while ensuring quick operation of the valve shaft. Only one hand is needed to lift the rod body to simultaneously complete unlocking and power transmission, achieving rapid rotation of the valve shaft and high operating efficiency.

[0016] 2. By using the combination of the handwheel and the handle, when it is necessary to drive the valve shaft to rotate by means of the rod, the handwheel or handle can be turned to rotate the valve shaft according to the actual operation requirements. For example, when a large torque is required for opening and closing, the handwheel can be rotated to achieve smooth force; while when the valve opening needs to be quickly adjusted, the handle can be directly pulled to complete the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a soft-seal gate valve with high stability proposed in this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the middle sleeve, handwheel, and handle;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the handle, rubber ring, and rubber sleeve;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the middle handle, rubber pad, and rubber ring;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the valve body, valve shaft, and protrusion.

[0022] In the diagram: 1. Valve body; 2. Valve shaft; 3. First groove; 4. Protrusion; 5. Rod; 6. Second groove; 7. Sleeve; 8. Handwheel; 9. Handle; 10. Rubber pad; 11. Rubber ring; 12. Rubber sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figures 1 to 5 A highly stable soft-seal gate valve includes a valve body 1 and a valve shaft 2. The valve shaft 2 of the valve body 1 has a first groove 3, and a rod 5 is inserted into the first groove 3. The rod 5 can be pulled upward in the first groove 3. Multiple protrusions 4 are fixedly connected to the inner wall of the first groove 3. The rod 5 has multiple second grooves 6. The number of second grooves 6 and the number of protrusions 4 are the same and they are matched. When the second groove 6 contacts the corresponding protrusion 4, it can drive the rod 5 to rotate the valve shaft 2 to open or close the valve body 1. If the rod 5 drives the second groove 6 to move downward, the second groove 6 separates from the protrusion 4, and the rod 5 can no longer drive the valve shaft 2 to rotate, thus avoiding accidental opening or closing of the valve body 1.

[0025] In this embodiment, a sleeve 7 is fixedly connected to one end of the rod 5, and a handwheel 8 is fixedly connected to the sleeve 7. A handle 9 is fixedly connected to both one end and the other end of the sleeve 7. The handle 9 and the handwheel 8 increase the operator's operating methods and can be used according to actual conditions. Rubber pads 10 are fixedly connected to multiple protrusions 4. The multiple protrusions 4 and the second grooves 6 are all arranged in a cross shape, which can increase the stability of the rod 5 driving the valve shaft 2. The length of the multiple protrusions 4 is less than the depth of the first groove 3, and the length of the multiple second grooves 6 is less than the height of the rod 5. In this way, when the rod 5 contacts the bottom of the inner wall of the first groove 3, the second groove 6 will not contact the protrusions 4 in the first groove 3. Rubber rings 11 are fixedly connected to both the outer and inner rings of the handwheel 8, which can increase rotational stability. Rubber sleeves 12 are fixedly connected to both handles 9, which can increase grip stability.

[0026] The working principle of this embodiment is as follows: When it is necessary to operate the valve shaft 2, the operator lifts the rod 5 with one hand, so that the second groove 6 of the rod 5 engages with the protrusion 4 in the first groove 3 of the valve shaft 2. Then, the operating mode can be selected according to the actual working conditions: if a large torque is required to smoothly open and close the valve, the handwheel 8 can be rotated, and the valve shaft 2 can be driven to rotate through the linkage between the handwheel 8 and the rod 5; if the valve opening needs to be quickly adjusted, the handle 9 can be directly pulled to achieve the rotation of the valve shaft 2; after the operation is completed, the rod 5 is lowered to separate the protrusion 4 from the second groove 6, so that the rod 5 cannot drive the valve shaft 2 to rotate, thus avoiding accidental opening and closing during the production process.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly stable soft-seal gate valve, comprising a valve body (1) and a valve shaft (2), characterized in that, The valve shaft (2) of the valve body (1) has a first groove (3), a rod (5) is mixed in the first groove (3), and a plurality of protrusions (4) are fixedly connected to the inner wall of the first groove (3). The rod (5) has a plurality of second grooves (6), and the plurality of second grooves (6) and the plurality of protrusions (4) are the same in number and compatible.

2. The highly stable soft-seal gate valve according to claim 1, characterized in that, One end of the rod (5) is fixedly connected to a sleeve (7), the sleeve (7) is fixedly connected to a handwheel (8), and one end and the other end of the sleeve (7) are fixedly connected to a handle (9).

3. The highly stable soft-seal gate valve according to claim 1, characterized in that, Each of the protrusions (4) is fixedly connected to a rubber pad (10).

4. The highly stable soft-seal gate valve according to claim 1, characterized in that, The multiple protrusions (4) and the second groove (6) are all arranged in a cross shape.

5. A highly stable soft-seal gate valve according to claim 1, characterized in that, The lengths of the plurality of protrusions (4) are all less than the depth of the first groove (3), and the lengths of the plurality of second grooves (6) are all less than the height of the rod (5).

6. A soft-seal gate valve with high stability according to claim 2, characterized in that, The outer and inner rings of the handwheel (8) are both fixedly connected with rubber rings (11).

7. A highly stable soft-seal gate valve according to claim 2, characterized in that, Both handles (9) are fixedly connected with rubber sleeves (12).

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